Try our new info resource - "Aladdin's Cave" (Main menu)Just added a separate link to Ash's Dropbox thread (shortcut)
Why would you want to know the compression, assuming it runs OK.
Red Letter Day. Engine started after just 3 attempts. Soon warms up and choke reduced then off after a very short time. So far so good. After running for a couple of minutes revs' started to rise up to 3000. Switch off, try again, same issue. Start think that the helmet laying on the floor ready is hopelessly optimistic. I did have the bike running a month ago and hadn't touched anything that would directly affect things. Head scratch and start thinking well here's the first sign that I'm going to have to get serious with the carb's and then thought let's try the idle screw and holy moly a less than a quarter turn and the tick over settled down fine. Helmet on let's go. Tried the brakes and wow the back one locks the wheel easily on our recently resurfaced street. Just as well because the front brake is, struggling for the right words, ineffective, hopeless, only for the brave etc. Anyway brakes tested and onto the main road with no dramas, rode through all the gears up and down, kept the rev's below 5000. Front end somewhat bouncy but overall one of those smile on your face moments. Checked the voltage on my return and it was giving 14.5v at about 1500 - 2000 rpm. Relax for a bit and chew on what to do next. Remember to turn petrol tap off. Have been reading engine full of fuel and seized up thread. I'll just go and check that tap is still off. Back from the road test, oil catcher at the ready.https://photos.app.goo.gl/bJrerK3GnwM7fq7U7